Expression of CD44v6 is an independent prognostic factor for poor survival in patients with esophageal squamous cell carcinoma

  • Authors:
    • Midori Shiozaki
    • Hideyuki Ishiguro
    • Yoshiyuki Kuwabara
    • Masahiro Kimura
    • Akira Mitsui
    • Yasuhiro Naganawa
    • Takahiro Shibata
    • Yoshitaka Fujii
    • Hiromitsu Takeyama
  • View Affiliations

  • Published online on: March 8, 2011     https://doi.org/10.3892/ol.2011.264
  • Pages: 429-434
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Abstract

CD44v6 has been causally associated with the development of metastases and with poor prognosis in various human malignancies. To elucidate the clinicopathological significance of CD44v6 expression in esophageal squamous cell carcinoma (ESCC), the present study aimed to investigate the expression of CD44v6 using immunohistological techniques. Using specific antibodies against CD44v6 and CD44s, expression of the proteins was analyzed immunohistochemically in 63 primary esophageal ESCCs, which were previously resected at the Nagoya City University Hospital without pre-operative induction therapy. Using light microscopy, the positive expression of CD44v6 was divided into a low- or high-expression group. The expression of CD44v6 in ESCC was analyzed with respect to various clinicopathological characteristics. The frequency of CD44v6 expression was 90.5% (57/63). The CD44v6 high-expression group comprised 55.6% of the patients (n=35) and the low expression group included 44.4% of the patients (n=28). In this study, no significant difference was observed between any clinicopathological factor and the immunohistochemical expression of CD44v6. In patients with high levels of CD44v6 expression, survival was markedly worse (p=0.0327). Favorable outcomes were observed for the clinicopathological characteristics of 6 patients whose tissue immunohistochemical expression of CD44v6 was not detected. Moreover, multivariate analysis confirmed that expression of CD44v6 was an independent prognostic indicator (risk ratio =2.793; p=0.0301). Overexpression of CD44v6 is a useful prognostic indicator of ESCC. Therefore, CD44v6 should be investigated as a potential target for therapy.
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May-June 2011
Volume 2 Issue 3

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Shiozaki M, Ishiguro H, Kuwabara Y, Kimura M, Mitsui A, Naganawa Y, Shibata T, Fujii Y and Takeyama H: Expression of CD44v6 is an independent prognostic factor for poor survival in patients with esophageal squamous cell carcinoma. Oncol Lett 2: 429-434, 2011
APA
Shiozaki, M., Ishiguro, H., Kuwabara, Y., Kimura, M., Mitsui, A., Naganawa, Y. ... Takeyama, H. (2011). Expression of CD44v6 is an independent prognostic factor for poor survival in patients with esophageal squamous cell carcinoma. Oncology Letters, 2, 429-434. https://doi.org/10.3892/ol.2011.264
MLA
Shiozaki, M., Ishiguro, H., Kuwabara, Y., Kimura, M., Mitsui, A., Naganawa, Y., Shibata, T., Fujii, Y., Takeyama, H."Expression of CD44v6 is an independent prognostic factor for poor survival in patients with esophageal squamous cell carcinoma". Oncology Letters 2.3 (2011): 429-434.
Chicago
Shiozaki, M., Ishiguro, H., Kuwabara, Y., Kimura, M., Mitsui, A., Naganawa, Y., Shibata, T., Fujii, Y., Takeyama, H."Expression of CD44v6 is an independent prognostic factor for poor survival in patients with esophageal squamous cell carcinoma". Oncology Letters 2, no. 3 (2011): 429-434. https://doi.org/10.3892/ol.2011.264